Göttingen 2012 – scientific programme
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T: Fachverband Teilchenphysik
T 115: Experimentelle Techniken der Astroteilchenphysik 3
T 115.3: Talk
Wednesday, February 29, 2012, 17:15–17:30, VG 0.110
Calibration of the MAGIC telescope camera with a pulsed UV laser — •Daisuke Nakajima1, David Fink1, Markus Fras1, Sara Hoffman1, Jürgen Hose1, David Paneque1, Masahiro Teshima1, Gianluca Giavitto2, Daniel Mazin2, Julian Sitarek2, and Daniela Hadasch3 — 1Max-Planck-Institut für Physik, München, Germany — 2Institut de Física d’Altes Energies, Barcelona, Spain — 3Institut de Ciencies de l’Espai (IEEC-CSIC), Bellaterra, Spain
MAGIC, a system of two imaging atmospheric Cherenkov telescopes, is designed to observe the Cherenkov light produced by air showers initiated by cosmic gamma rays. In order to extract the measured amount of Cherenkov light precisely, it is necessary to perform a flat-fielding and calibration of the camera. We perform this calibration by means of pulsed UV laser which flashes the camera from a 17m distance. The calibration box has several useful features like, for example, a set of two rotating attenuation filters, and has been extensively checked to provide a homogenous and stable amplitude to the camera. Details of the development and performance of the newly developed calibration box will be reported in this talk.